EP2250400A1 - Reib- und dämpfungselement mit integrierter dichtlippe - Google Patents
Reib- und dämpfungselement mit integrierter dichtlippeInfo
- Publication number
- EP2250400A1 EP2250400A1 EP08872966A EP08872966A EP2250400A1 EP 2250400 A1 EP2250400 A1 EP 2250400A1 EP 08872966 A EP08872966 A EP 08872966A EP 08872966 A EP08872966 A EP 08872966A EP 2250400 A1 EP2250400 A1 EP 2250400A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- friction
- damping element
- clamping system
- roller carrier
- seal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000013016 damping Methods 0.000 title claims abstract description 27
- 238000007789 sealing Methods 0.000 title claims abstract description 26
- 238000002485 combustion reaction Methods 0.000 claims abstract description 5
- 239000012876 carrier material Substances 0.000 claims description 2
- 238000010276 construction Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H7/00—Gearings for conveying rotary motion by endless flexible members
- F16H7/08—Means for varying tension of belts, ropes or chains
- F16H7/10—Means for varying tension of belts, ropes or chains by adjusting the axis of a pulley
- F16H7/12—Means for varying tension of belts, ropes or chains by adjusting the axis of a pulley of an idle pulley
- F16H7/1209—Means for varying tension of belts, ropes or chains by adjusting the axis of a pulley of an idle pulley with vibration damping means
- F16H7/1218—Means for varying tension of belts, ropes or chains by adjusting the axis of a pulley of an idle pulley with vibration damping means of the dry friction type
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H7/00—Gearings for conveying rotary motion by endless flexible members
- F16H7/08—Means for varying tension of belts, ropes or chains
- F16H7/10—Means for varying tension of belts, ropes or chains by adjusting the axis of a pulley
- F16H7/12—Means for varying tension of belts, ropes or chains by adjusting the axis of a pulley of an idle pulley
- F16H7/1254—Means for varying tension of belts, ropes or chains by adjusting the axis of a pulley of an idle pulley without vibration damping means
- F16H7/1281—Means for varying tension of belts, ropes or chains by adjusting the axis of a pulley of an idle pulley without vibration damping means where the axis of the pulley moves along a substantially circular path
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H7/00—Gearings for conveying rotary motion by endless flexible members
- F16H7/08—Means for varying tension of belts, ropes or chains
- F16H2007/0802—Actuators for final output members
- F16H2007/081—Torsion springs
Definitions
- the present invention relates to a tensioning system of a traction mechanism drive, in particular a belt or chain drive of an internal combustion engine with a stationary base part and associated shaft on a slide bearing a tension roller carrier with associated tensioning roller is pivotable.
- the shaft is connected at one end with a friction disc and assigned via the other end of a flange for fastening the clamping system.
- the friction disc is in operative connection with a friction and damping element.
- a spring element is supported by a spring end on the friction and damping element and is mutually connected to initiate a force moment with the tension roller carrier.
- clamping systems are known in many embodiments, for example from DE 100 63 639, JP 2003 222 211 A or EP 0 780 597 A. In all these known solutions, no measures are provided that effectively prevent leading to functional restrictions or functional failures entry of impurities in an interior of the clamping system.
- the present task is therefore based on the object to show measures for achieving improved reliability of clamping systems.
- the object is achieved in that a friction and damping element is seen in one piece with a circumferential seal, which in the installed state in a self-adjusting sealing gap between the stationary friction disc and the tension roller carrier intervenes.
- This measure effectively prevents adverse entry of contaminants of any kind into the interior of the clamping system.
- This advantage can be realized without another separate component.
- the invention designed according to friction and damping element requires no increased assembly costs, or affects the design of the components with which the seal interacts.
- the reliability of the clamping system is significantly increased by the seal according to the invention, this desired advantage can be achieved with a low cost overhead.
- Another advantage results from the fact that a hitherto partially used separate sealing of the plain bearing can be omitted by the seal according to the invention. Consequently, this provides a further advantage of the invention, since the number of individual components can be reduced, associated with a reduction in component costs.
- the assembly effort is significantly simplified by a smaller number of feeding or assembly stations. Thus, a significant cost reduction can be achieved by saving an assembly line and on the other hand, a higher number of cycles can be specified.
- a preferred construction of the seal according to the invention provides to provide these with two radially offset sealing lips.
- the radially outer sealing lip in the installed state is non-positively supported on the tension roller carrier and the inner sealing lip on the friction disc.
- This structure is particularly suitable for a clamping system structure, in which a relatively narrow annular or sealing gap is provided between the friction disc and the tension roller carrier.
- friction and damping element is further provided in addition to the seal on the side facing away from the seal side in one piece with an axially projecting a spring end of the torsion spring on the outside enclosing approach.
- the approach is designed so that it receives the spring end in a form-fitting manner in a recording.
- the friction and damping element is constructed and designed as a one-component plastic component. Alternatively, it makes sense to make the friction and damping element as a two-component plastic component. To achieve a component-rigid arrangement is further provided according to the invention, to provide the friction and damping element as a plastic component with a metallic carrier material.
- Figure 1 is a sectional view of an inventively designed
- FIG. 2 is an enlarged view of a detail of the tensioning system according to FIG. 1;
- FIG. 3 shows a detail according to Figure 2 with an alternative shown
- Figure 4 shows the seal according to the invention with an item in a perspective.
- FIG. 1 shows a clamping system 1, which comprises a stationary base part 2, which is fastened to a not shown in Figure 1 housing of an internal combustion engine, preferably by means of screwing.
- a tension roller carrier 5 is rotatably mounted on a shaft 4.
- the shaft 4 is rotatably associated with one end of a friction disc 6 and connected to the opposite end with a flange 7, via which the clamping system 1 is attached to the internal combustion engine.
- the friction disc 6 is in turn connected in a rotationally fixed manner to a friction and damping element 8, which bears against the circumference of an inner wall 9 of the tensioning roller carrier 5 in a form-fitting manner.
- the friction and damping element 8 is attached to the friction disc 6 with a radial degree of freedom.
- the spring element 11 further effects a circumferentially acting force component on the tension roller carrier 5, which in the installed state of the tensioning system 1 frictionally via an end positioned tensioner roller 10th is supported on a not shown traction means of a traction mechanism drive.
- the friction and damping element 8 is provided with a seal 13, which seals a forming sealing gap 21 between the friction disk 6 and the tension roller carrier 5.
- Figure 2 illustrates in a larger view of a detail of the clamping system 1, the structure of the two sealing lips 14, 15 comprehensive seal 13.
- the radially outer sealing lip 14 is supported on an end face 16 of the tension roller carrier 5 from.
- the further sealing lip 15 is supported on a lateral surface 17 of the friction disc 6.
- the friction and damping element 8 according to FIG. 3 is provided with a seal 18 whose sealing lips 19, 20 form a T-shaped cross-sectional profile.
- This illustration also shows an integrally formed with the friction and damping element 8 nen supported on the inner wall 9 approach 22 with integrated receptacle 23 engages in the form-fitting attachment a spring end of the spring element 11.
- FIG. 4 shows the slotted friction and damping element 8 in a single-part drawing whose ends are coupled in the area of the slot 25 via an elastic connection 24.
- the friction and damping element 8 comprises a one-sided end-side arrangement of the seal 13, which is designed inclined in the non-installed state, whereby in the installed state adjusts a frictional support on the tension roller carrier 5 and / or the friction disc 6.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102008011786A DE102008011786A1 (de) | 2008-02-28 | 2008-02-28 | Reib- und Dämpfungselement mit integrierter Dichtlippe |
| PCT/EP2008/067420 WO2009106180A1 (de) | 2008-02-28 | 2008-12-12 | Reib- und dämpfungselement mit integrierter dichtlippe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP2250400A1 true EP2250400A1 (de) | 2010-11-17 |
| EP2250400B1 EP2250400B1 (de) | 2011-08-24 |
Family
ID=40379747
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP08872966A Not-in-force EP2250400B1 (de) | 2008-02-28 | 2008-12-12 | Reib- und dämpfungselement mit integrierter dichtlippe |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP2250400B1 (de) |
| AT (1) | ATE521826T1 (de) |
| DE (1) | DE102008011786A1 (de) |
| WO (1) | WO2009106180A1 (de) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104797856B (zh) | 2012-10-22 | 2018-04-17 | 利滕斯汽车合伙公司 | 阻尼增强的张紧器 |
| DE112014004168B4 (de) | 2013-09-11 | 2025-09-11 | Litens Automotive Partnership | Spannvorrichtung mit einer vergrösserten dämpfung und einer arm-auf-basisschale-konfiguration |
| DE102014206716A1 (de) * | 2014-04-08 | 2015-10-08 | Muhr Und Bender Kg | Riemenspannvorrichtung |
| US20160186839A1 (en) * | 2014-12-26 | 2016-06-30 | The Gates Corporation | Tensioner with axial seal |
| DE102017128280A1 (de) * | 2017-11-29 | 2019-05-29 | Muhr Und Bender Kg | Spannvorrichtung für einen zugmitteltrieb |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3728158A1 (de) * | 1987-05-18 | 1989-03-09 | Werner Kotzab | Spannvorrichtung fuer riemen u. dgl., insbesondere an kraftfahrzeugmotoren |
| US5647813A (en) | 1995-12-18 | 1997-07-15 | The Gates Corporation | Tensioner with damping mechanism and belt drive system |
| JP3732446B2 (ja) | 2002-01-30 | 2006-01-05 | 三ツ星ベルト株式会社 | オートテンショナ |
| DE10252432B4 (de) * | 2002-11-12 | 2017-12-07 | Schaeffler Technologies AG & Co. KG | Spannvorrichtung |
| DE10360286A1 (de) * | 2003-12-20 | 2005-07-21 | Ina-Schaeffler Kg | Riemenspanneinrichtung |
| DE102005047265A1 (de) * | 2005-10-01 | 2007-04-05 | Schaeffler Kg | Spannvorrichtung eines Zugmitteltriebs |
-
2008
- 2008-02-28 DE DE102008011786A patent/DE102008011786A1/de not_active Withdrawn
- 2008-12-12 WO PCT/EP2008/067420 patent/WO2009106180A1/de not_active Ceased
- 2008-12-12 EP EP08872966A patent/EP2250400B1/de not_active Not-in-force
- 2008-12-12 AT AT08872966T patent/ATE521826T1/de active
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2009106180A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| EP2250400B1 (de) | 2011-08-24 |
| ATE521826T1 (de) | 2011-09-15 |
| WO2009106180A1 (de) | 2009-09-03 |
| DE102008011786A1 (de) | 2009-09-03 |
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